This slide binder has 30 clear plastic rings that are opened and closed by sliding a tab at the bottom, and holds size A4 paper. Use the binder for anything---your notes, design ideas, recipes, and more. (You could hole-punch your documents using a Carl Neo punch.) The binder's translucent covers provide a peek of what's inside, and they match the light and airy feel of the binder. The front and back covers have pockets on the inside, and the back pocket has a convenient business card slot. Because it is slim, light, and flexible, the binder takes up little space in your bag and is easy to carry.